This may be obvious to most, so take no offense. I noticed at least one user is feeding Premiere from an SSD "plugged in locally." I don't know what that means, but if it's not powered from a wall or UPS outlet, it's called a "bus-powered drive" and it's potentially disastrous to use it for actual editing, rendering or export, because the bus, (the cable and port) is shared between powering the drive and transferring data. Playback may skip or look choppy, or may freeze, while audio (generally lower bandwidth) comes through fine. I even saw an entire whole timeline disappear! Bus powered drives, spinners or blades, fast though they may be, do not repond well to high loads, such as large format playback, effects playback, rendering, rtc. even when PPro resolution is cut to a fraction of full bandwidth. These drives are best suited for high-speed copying and archive, not high-demand editing.
USE A RAID for editing, especially for 4K and up, on any machine. Even RAID 0 (no backup if one of the internal drives fails) is more reliable than a bus powered drive. Ideally, your raid supports 0+1 format, also known as RAID 10-- all your data is backed up to a second set of drives- it's mirrored, for quick restoration if a drive fails. RAID 5 uses the most of your available drives, saving 1 as a parity drive-- it can restore a failed drive but it's way slower than copying from a mirror, especially when working from affordable spinning hard drives. You decide.
Before complaining about performance in high bandwidth video, check your pipeline for bus-powered drives!!
And keep your media off your system drive! You need an external drive for high-bandwidth media. You don't need that competing with system and app resources which need to be on call throughout an edit session.
Best, as always,
Loren
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